export enum FeatureEvents {
  'featureClick' = 'featureClick',  // 鼠标点击feature对应的区域时触发
  'featureMouseover' = 'featureMouseover',  // 鼠标移入feature对应的区域触发 
  'featureMouseout' = 'featureMouseout',  // 鼠标移出 feature对应的区域触发  
  'featureMousemove' = 'featureMousemove',  // 鼠标在feature对应的区域上移动时触发 
  'outsideClick' = 'outsideClick'  // 鼠标点击了无法识别的区域时触发
}